Troy,
If you want a new one, they're still available from Porsche dealers & the other Porsche Parts retailers, for around $175 last I saw with a discount - try SMC on here, TC'sGarage.com, AA, etc.; & Sunset Porsche or Suncoast Porsche dealerships' online parts websites for best discounts from dealers.
You'll also need the good quality 3M OEM adhesive patch to mount it on your windshield, & get an extra - they're cheap.
FYI - it's the same mirror on all 914s & on the 911/912/912E/930 of that 60s-70's era.
If you want nice used, others on here will jump in.
Tom
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